Hyperbaric oxygen devices and delivery methods
First Claim
Patent Images
1. A device for delivering treatment gas to an extremity of a patient comprising:
- an enclosure including an interior and an exterior, the enclosure closed on one end and open on the other end and sized and shaped to receive the patient'"'"'s extremity, the enclosure defined by a collapsible bag including two sheets of fluid impervious material sealed together, a first side of one sheet defining the exterior of the enclosure, a first side of the other sheet defining the interior of the enclosure, the sheets further forming a plurality of pockets such that gas can be delivered to the pockets to inflate and maintain the enclosure in a substantially rigid condition when treatment gas pressure in the interior of the enclosure is cycled between first and second pressures.
5 Assignments
0 Petitions
Accused Products
Abstract
A hyperbaric oxygen device and methods of applying hyperbaric oxygen are disclosed. The device comprises an enclosure including a collapsible bag defined by two sheets of fluid impervious material sealed together at both ends such that gas can be delivered between the sheets to inflate the enclosure to a rigid state and maintain the enclosure in the rigid state when oxygen pressure in the interior of the enclosure is cycled between ambient pressure and above ambient pressure.
-
Citations
36 Claims
-
1. A device for delivering treatment gas to an extremity of a patient comprising:
an enclosure including an interior and an exterior, the enclosure closed on one end and open on the other end and sized and shaped to receive the patient'"'"'s extremity, the enclosure defined by a collapsible bag including two sheets of fluid impervious material sealed together, a first side of one sheet defining the exterior of the enclosure, a first side of the other sheet defining the interior of the enclosure, the sheets further forming a plurality of pockets such that gas can be delivered to the pockets to inflate and maintain the enclosure in a substantially rigid condition when treatment gas pressure in the interior of the enclosure is cycled between first and second pressures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 36)
-
19. A wound treatment device comprising:
-
a main chamber adapted to receive a treatment fluid defined by a collapsible bag comprising a sheet of fluid impervious material, the bag being sealed on a first end and being open on a second end, the main chamber sized and shaped to enclose a patient'"'"'s extremity; an inflatable cuff proximate the open end of the chamber for sealing the main chamber around the patient'"'"'s extremity; and means for retaining the collapsible bag in a rigid state, the means comprising a plurality of inflatable secondary chambers at least partially surrounding said main chamber, such that the sheet forming the main chamber when said secondary chambers are maintained under a fluid pressure, does not contact the patient'"'"'s wound when said treatment fluid is cycled between first and second pressures within said main chamber.
-
-
20. A method of treating an extremity of a patient with treatment gas comprising:
-
providing a collapsible bag having an open end, a closed end, and a chamber defined therebetween adapted to receive a patient'"'"'s extremity, the bag further comprising a wall having a plurality of inflatable pockets; rigidifying the wall by inflating the pockets with a fluid; inserting a patient'"'"'s extremity through the open end of the bag; sealing the open end around the patient'"'"'s extremity to prevent treatment gas delivered to the chamber from escaping; and delivering treatment gas to the chamber in a pulsed manner between first and second pressures, wherein the bag remains in a substantially rigid state and does not collapse around the patient'"'"'s extremity. - View Dependent Claims (21, 22, 23, 24)
-
-
25. A wound treatment device for delivering treatment gas to a wound, said device comprising:
-
a collapsible flexible cover, the cover forming a wall configured to form a chamber for placement over a wound, the wall further configured to be substantially rigid when forming the chamber independent of pressure in the chamber, said wall being substantially gas impermeable for facing the wound when the cover is placed over the wound, wherein said wall includes a plurality of inflatable pockets that upon being inflated rigidify the wall; and an inlet in communication with the chamber for delivering treatment gas into the chamber.
-
-
26. A wound treatment device for delivering treatment gas to a wound, said device comprising:
-
a flexible cover, the cover having a wall with a plurality of inflatable pockets to rigidify the cover when inflated, the wall having a separate first side and a separate second side, wherein the second side is substantially gas impermeable for facing a wound when the cover is placed over the wound and for forming a chamber over the wound; a source of treatment gas; a controller; and an inlet in fluid communication with the chamber and the source of treatment gas for delivering treatment gas into the chamber, the controller varying the flow of treatment gas into the chamber to thereby vary the pressure of the treatment gas in the chamber. - View Dependent Claims (27, 28, 29, 30, 31)
-
-
32. A wound treatment device for delivering treatment gas to a wound, said device comprising:
-
a chamber wall defining a main chamber and a plurality of inflatable secondary chambers, the secondary chambers being inflatable between deflated state wherein the chamber wall is collapsible and an inflated state wherein the chamber wall becomes at least partially rigid thereby defining the chamber for placement about a wound, the chamber wall being spaced from the wound; and an inlet in communication with the chamber for delivering treatment gas into the chamber. - View Dependent Claims (33, 34, 35)
-
Specification